Immersive bunker vigilance
No energy bars, no popup ads, no pay-to-revive. Put on your headphones to hear the hum of CRT monitors, the static of shortwave radio, and the blizzards howling against the hatch.
Post-apocalyptic survival puzzle
Cold Static: Bunker Survival
An offline bunker survival puzzle game for iPhone. Tune shortwave frequencies to intercept faint radio signals, craft resources to withstand sub-zero cold and nocturnal intrusions, and search for your missing daughter. Free trial for the first 5 days; a one-time purchase unlocks the full storyline and endless mode.
Coming to the App Store - Platform
- iPhone / iOS / Game
- Status
- App Store coming soon / Free trial + one-time unlock / No ads / No tracking
- Audience
- Players who enjoy atmospheric post-apocalyptic survival, resource crafting, and immersive radio narrative with zero ads or energy gates.
- Support
- [email protected]
- Legal
- Privacy Policy / Terms of Service
Product Overview
Cold Static: Bunker Survival is an offline bunker survival puzzle game for iPhone. In a subterranean bunker surrounded by perpetual freezing darkness, you tune a shortwave radio to receive fragmented signals, manage daily action points to craft supplies, and survive nocturnal hazards and cold under limited fuel and power.
The game is built on a quiet, pure single-player philosophy: zero ad SDKs, no account system, and no energy timers. Days 1 through 5 provide the complete prologue, crafting, and survival loop for free. The remaining days and the Endless Mode are unlocked with a single one-time purchase (Tier 3), without consumable microtransactions or subscriptions.
This page serves players exploring game features, App Store review requirements (privacy disclosures, commercial boundaries, and developer support), and independent game design case studies.
- Gameplay
- Radio tuning + crafting Dial frequencies to intercept Morse signals and craft tools in limited inventory slots.
- Privacy
- Data Not Collected Runs offline with no account, no ad SDK, and no telemetry or cloud upload.
- Pricing
- Free trial + one-time unlock First 5 days free; one-time Tier 3 unlock for the full 15-day story and Endless Mode.
- Languages
- 3 UI Languages English, Traditional Chinese, and Japanese native UI and radio messages.
Why It Matters
Each product page is written for users, reviewers, and builders: what it solves, what it does not solve, and what can be reused.
Clear compliance boundaries
Zero data collection disclosure, StoreKit 2 one-time non-consumable purchase, offline execution, fully compliant with Apple App Store guidelines.
A modern indie game case study
Shows how to build a high-polish, lightweight mobile game using SwiftUI, deterministic rule engines, a 24-color pixel asset pipeline, and StoreKit 2.
Core Experience
CRT oscilloscope and shortwave radio
Pixel shaders and dynamic waveforms simulate dialing vintage radio bands and searching for signal peaks.
Interlocked shelter resource loops
Fuel preserves temperature, electricity powers lighting, and hatch integrity resists intrusion. Every action point (AP) matters.
Twin-thread narrative
Search for your daughter's signal while piecing together how the surface fell. 15 days of decisions lead to 6 distinct endings.
Deterministic rules
Rule-driven systems with transparent feedback and bad-luck protection; outcome depends on player resource management rather than blind chance.
Design Principles
Not-to-do list comes first
No launch ads, no forced internet connection, no gacha loot boxes, no arbitrary daily quest checklists.
Transparent cause and effect
Numbers and environmental readings are clearly displayed before taking action, so players can make reasoned survival choices.
Clean in-house assets
Original visual artwork and procedural audio synthesis provide an authentic aesthetic untainted by generic asset flips.
Build Diary
The Cold Static build diary documents the entire journey from initial market research and lightweight AI decisions to SwiftUI CRT shader implementation and StoreKit 2 App Store compliance.
iOS indie gameSwiftUI pixel renderingStoreKit 2 one-time purchaseOffline minimalist design
View all build notes Build diary coming soon
This product has a reserved build diary path for decisions, tradeoffs, and launch notes.
Privacy and Support
Normal gameplay runs offline with zero data collection (Data Not Collected). Purchases and restores use Apple StoreKit. No ads, accounts, or third-party analytics.